Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6310 vulnerabilities reference this CWE, most recent first.

CVE-2025-20677 (GCVE-0-2025-20677)

Vulnerability from cvelistv5 – Published: 2025-06-02 02:29 – Updated: 2025-06-03 17:38
VLAI
Summary
In Bluetooth driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412256; Issue ID: MSV-3284.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927 Affected: NB SDK release 3.6 and before
Create a notification for this product.
Show details on NVD website
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CVE-2025-20676 (GCVE-0-2025-20676)

Vulnerability from cvelistv5 – Published: 2025-06-02 02:29 – Updated: 2025-06-03 17:40
VLAI
Summary
In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412240; Issue ID: MSV-3293.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927 Affected: NB SDK release 3.6 and before
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-20675 (GCVE-0-2025-20675)

Vulnerability from cvelistv5 – Published: 2025-06-02 02:29 – Updated: 2025-06-02 15:46
VLAI
Summary
In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00413201; Issue ID: MSV-3302.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927 Affected: NB SDK release 3.6 and before
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-20673 (GCVE-0-2025-20673)

Vulnerability from cvelistv5 – Published: 2025-06-02 02:29 – Updated: 2025-06-02 15:46
VLAI
Summary
In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00413200; Issue ID: MSV-3304.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927 Affected: NB SDK release 3.6 and before
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-20647 (GCVE-0-2025-20647)

Vulnerability from cvelistv5 – Published: 2025-03-03 02:25 – Updated: 2026-02-17 14:35
VLAI
Summary
In Modem, there is a possible system crash due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY00791311 / MOLY01067019; Issue ID: MSV-2721.
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2025-20262 (GCVE-0-2025-20262)

Vulnerability from cvelistv5 – Published: 2025-08-27 16:23 – Updated: 2025-08-27 18:19
VLAI
Title
Cisco Nexus 3000 and 9000 Series Switches Protocol Independent Multicast Version 6 Denial of Service Vulnerability
Summary
A vulnerability in the Protocol Independent Multicast Version 6 (PIM6) feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an authenticated, low-privileged, remote attacker to trigger a crash of the PIM6 process, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of PIM6 ephemeral data queries. An attacker could exploit this vulnerability by sending a crafted ephemeral query to an affected device through one of the following methods: NX-API REST, NETCONF, RESTConf, gRPC, or Model Driven Telemetry. A successful exploit could allow the attacker to cause the PIM6 process to crash and restart, causing potential adjacency flaps and resulting in a DoS of the PIM6 and ephemeral query processes.
Severity
5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco NX-OS Software Affected: 9.2(3)
Affected: 9.2(2v)
Affected: 9.2(1)
Affected: 9.2(2t)
Affected: 9.2(3y)
Affected: 9.3(2)
Affected: 9.2(4)
Affected: 9.3(1)
Affected: 9.3(1z)
Affected: 9.2(2)
Affected: 9.3(3)
Affected: 9.3(4)
Affected: 9.3(5)
Affected: 9.3(6)
Affected: 10.1(2)
Affected: 10.1(1)
Affected: 9.3(5w)
Affected: 9.3(7)
Affected: 9.3(7k)
Affected: 10.2(1)
Affected: 9.3(7a)
Affected: 9.3(8)
Affected: 10.2(1q)
Affected: 10.2(2)
Affected: 9.3(9)
Affected: 10.1(2t)
Affected: 10.2(3)
Affected: 10.2(3t)
Affected: 9.3(10)
Affected: 10.2(2a)
Affected: 10.3(1)
Affected: 10.2(4)
Affected: 10.3(2)
Affected: 9.3(11)
Affected: 10.3(3)
Affected: 10.2(5)
Affected: 9.3(12)
Affected: 10.2(3v)
Affected: 10.4(1)
Affected: 10.3(99w)
Affected: 10.2(6)
Affected: 10.3(3w)
Affected: 10.3(99x)
Affected: 10.3(3o)
Affected: 10.3(4)
Affected: 10.3(3p)
Affected: 10.3(4a)
Affected: 10.4(2)
Affected: 10.3(3q)
Affected: 9.3(13)
Affected: 10.3(5)
Affected: 10.2(7)
Affected: 10.4(3)
Affected: 10.3(3x)
Affected: 10.3(4g)
Affected: 10.5(1)
Affected: 10.2(8)
Affected: 10.3(3r)
Affected: 10.3(6)
Affected: 9.3(14)
Affected: 10.4(4)
Affected: 10.3(4h)
Affected: 10.5(2)
Affected: 10.4(4g)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-20080 (GCVE-0-2025-20080)

Vulnerability from cvelistv5 – Published: 2026-02-10 16:25 – Updated: 2026-02-11 15:02
VLAI
Summary
Null pointer dereference in the firmware for some Intel(R) AMT and Intel(R) Standard Manageability within Ring 0: Kernel may allow a denial of service. Network adversary with an unauthenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via network access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • Denial of Service
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
n/a Intel(R) AMT and Intel(R) Standard Manageability Affected: See references
Show details on NVD website
To clipboard 

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CVE-2025-20071 (GCVE-0-2025-20071)

Vulnerability from cvelistv5 – Published: 2025-05-13 21:02 – Updated: 2025-05-14 15:30
VLAI
Summary
NULL pointer dereference for some Intel(R) Graphics Drivers may allow an authenticated user to potentially enable denial of service via local access.
Severity
6.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • Denial of Service
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
n/a Intel(R) Graphics Drivers Affected: See references
Show details on NVD website
To clipboard 

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CVE-2025-20045 (GCVE-0-2025-20045)

Vulnerability from cvelistv5 – Published: 2025-02-05 17:31 – Updated: 2025-02-05 18:19
VLAI
Title
BIG-IP SIP MRF Vulnerability
Summary
When SIP session Application Level Gateway mode (ALG) profile with Passthru Mode enabled and SIP router ALG profile are configured on a Message Routing type virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
f5
References
Impacted products
Vendor Product Version
F5 BIG-IP Affected: 17.1.0 , < 17.1.2 (custom)
Affected: 16.1.0 , < 16.1.5 (custom)
Affected: 15.1.0 , < * (custom)
Create a notification for this product.
Date Public
2025-02-05 15:00
Credits
F5
Show details on NVD website
To clipboard 

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CVE-2025-15571 (GCVE-0-2025-15571)

Vulnerability from cvelistv5 – Published: 2026-02-10 14:32 – Updated: 2026-02-23 09:56
VLAI
Title
ckolivas lrzip stream.c ucompthread null pointer dereference
Summary
A security vulnerability has been detected in ckolivas lrzip up to 0.651. This vulnerability affects the function ucompthread of the file stream.c. Such manipulation leads to null pointer dereference. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
ckolivas lrzip Affected: 0.651
Create a notification for this product.
Credits
ziiiro (VulDB User)
Show details on NVD website
To clipboard 

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Mitigation MIT-56
Implementation

For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

Mitigation
Requirements

Select a programming language that is not susceptible to these issues.

Mitigation
Implementation

Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

Mitigation
Architecture and Design

Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.

Mitigation
Implementation

Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.

No CAPEC attack patterns related to this CWE.

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